Service manual
CD-DD4500
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1 RST Input Hardware reset input terminal. (L: reset, R: normal operation)
2* MIMD Input Microcomputer I/F mode select input terminal. (L: serial, H: I2C bus)
3 MICS Input Microcomputer I/F chip select input terminal.
4 MILP Input Microcomputer I/F latch pulse input.
5 MIDIO Input/Output Microcomputer I/F data input/output terminal.
6 MICK Input Microcomputer I/F clock input terminal.
7 MIACK Output Microcomputer I/F acknowledge output terminal.
8* FI0 Input Flag input terminal 0.
9* FI1 Input Flag input terminal 1.
10* FI2 Input Flag input terminal 2.
11* FI3 Input Flag input terminal 3.
12* IRQ Input Interrupt input terminal.
13 VSS — Digital ground terminal.
14 LRCKA Input Audio I/F LR clock input terminal A.
15 BCKA Input Audio I/F bit clock input terminal A.
16 SDO0 Output Audio I/F data output terminal 0.
17 SDO1 Output Audio I/F data output terminal 1.
18 SDO2 Output Audio I/F data output terminal 2.
19* SDO3 Output Audio I/F data output terminal 3.
20 LRCKB Input Audio I/F LR clock input terminal B.
21 BCKB Input Audio I/F bit clock input terminal B.
22 SDI0 Input Audio I/F data input terminal 0.
23 SDI1 Input Audio I/F data input terminal 1.
24 VDD Input Digital power supply terminal.
25 LRCKOA Output Audio I/F LR clock output terminal A.
26 BCKOA Output Audio I/F bit clock output terminal A.
27 TEST0 Input Test input terminal 0. (L: test, H: normal operation)
28 TEST1 Input Test input terminal 1. (L: test, H: normal operation)
29* LRCKOB Output Audio I/F LR clock output terminal B.
30* BCKOB Output Audio I/F bit clock output terminal B.
31* TXO Output SPDIF output terminal.
32 TEST2 Input Test input terminal 2. (L: test, H: normal operation)
33 TEST3 Input Test input terminal 3. (L: test, H: normal operation)
34 RX Input SPDIF input terminal.
35 VSS — Digital ground terminal.
36 TSTSUB0 Input Test sub input terminal 0. (L: test, H: normal operation)
37 FCONT Output VCO frequency control output terminal.
38 TSTSUB1 Input Test sub input terminal 1. (L: test, H: normal operation)
39 TSTSUB2 Input Test sub input terminal 2. (L: test, H: normal operation)
40 PDO Output Phase error signal output terminal.
41 VDDA Input Analog power supply terminal.
42* PLON Input Clock select input terminal. (L: external clock, H: VCO clock)
43 AMPI Input Amplifier input terminal for LPF.
44 AMPO Output Amplifier output terminal for LPF.
45 CKI Input External clock input terminal.
46 VSSA — Analog ground terminal.
47 CKO Output DIR clock output terminal.
48 LOCK Output VCO lock detection output terminal.
49 VSS — Digital ground terminal.
50 WR Output External SRAM write signal output terminal.
51 OE Output External SRAM output enable signal output terminal.
IC504 RH-iX0443AWZZ: Dolby Decoder (IX0443AW) (1/2)
Terminal Name
Pin No.
Input/Output
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.